CVE-2024-56689
kernel: PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 28, 2024
Updated · November 21, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'
If platform_get_resource_byname() fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res->start will cause a NULL pointer access. Add a check to prevent it.
[kwilczynski: error message update per the review feedback] [bhelgaas: commit log]
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference